單元交叉極化對自適應陣列性能的影響
The effects of element cross-polarization on adaptive array performance
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摘要: 該文分析了在存在雙極化干擾機條件下的自適應陣列的性能。由于接收天線單元交叉極化方向圖不一致性的存在,通過改變兩正交極化干擾分量之間的相位,可以導致陣列單元之間的幅相不一致發(fā)生變化。這種變化是無法用簡單的校正固定幅相誤差的方法來加以校正的,從而導致自適應陣列的性能下降。
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關鍵詞:
- 交叉極化; 自適應陣列; 幅相不一致性
Abstract: In this paper, the adaptive antenna array performance is given when the dual polarized jamming signals are considered. If the phases of two polarized elements are changed dnring the adaptive weight calculation, the amplitute and phase errors between the antenna elements will be also changed due to the inconsistaricy of the element cross-polarization. This kind of error can not be corrected and the signal to noise plus interference ratio will be rednced. -
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